Three-dimensional image display apparatus

Abstract

A three-dimensional image display apparatus includes: an image output unit that outputs image light that has a particular polarization, the image output unit having: a retaining substrate including a transparent glass; an optical element retained by the retaining substrate; and a resin polarizing plate pasted with a first adhesive layer on a side of the retaining substrate opposite to a side where the optical element is retained; and a retarder that is pasted onto the polarizing plate with a second adhesive layer and has: a transparent resin base; and a plurality of phase retarding parts that are provided on the resin base and output the image light as mutually differently polarized light, the image light having been incident on the plurality of phase retarding parts, wherein the second adhesive layer is as hard as or harder than the first adhesive layer.

What is claimed is: 
     
       1. A three-dimensional image display apparatus comprising:
 an image output unit that outputs image light that has a particular polarization, the image output unit having: 
 a retaining substrate including a transparent glass; 
 an optical element retained by the retaining substrate; and 
 a resin polarizing plate pasted with a first adhesive layer on a side of the retaining substrate opposite to a side where the optical element is retained; and 
 a retarder that is pasted onto the polarizing plate with a second adhesive layer and has: 
 a transparent resin base; and 
 a plurality of phase retarding parts that are provided on the resin base and output the image light as mutually differently polarized light, the image light having been incident on the plurality of phase retarding parts, wherein the second adhesive layer is harder than the first adhesive layer, and 
 the storage elastic modulus of the first adhesive layer is more than or equal to about 0.3 MPa and less than or equal to about 0.7 MPa, the storage elastic modulus of the second adhesive layer is more than or equal to about 0.7 MPa and less than or equal to about 2.3 GPa, and the storage elastic modulus of the first adhesive layer is less than the storage elastic modulus of the second adhesive layer. 
 
     
     
       2. The three-dimensional image display apparatus according to  claim 1 , wherein the retarder is thinner than the polarizing plate. 
     
     
       3. A method of manufacturing a three-dimensional image display apparatus, the method comprising:
 manufacturing an image output unit that outputs image light that has a particular polarization, the image output unit having: 
 a retaining substrate including a transparent glass; 
 an optical element retained by the retaining substrate; and 
 a resin polarizing plate pasted with a first adhesive layer on a side of the retaining substrate opposite to a side where the optical element is retained; 
 manufacturing a retarder that has: 
 a transparent resin base; and 
 a plurality of phase retarding parts that are provided on the resin base and output the image light as mutually differently polarized light, the image light having been incident on the plurality of phase retarding parts; and 
 pasting the retarder onto the image output unit with a second adhesive layer that is harder than the first adhesive layer, wherein the storage elastic modulus of the first adhesive layer is more than or equal to about 0.3 MPa and less than or equal to about 0.7 MPa, the storage elastic modulus of the second adhesive layer is more than or equal to about 0.7 MPa and less than or equal to about 2.3 GPa, and the storage elastic modulus of the first adhesive layer is less than the storage elastic modulus of the second adhesive layer. 
 
     
     
       4. The three-dimensional image display apparatus according to  claim 1 , wherein the storage elastic modulus of the second adhesive layer is 2.0 GPa to 2.3 GPa. 
     
     
       5. The three-dimensional image display apparatus according to  claim 1 , the storage elastic modulus of the first adhesive layer is about 0.3 MPa. 
     
     
       6. The three-dimensional image display apparatus according to  claim 1 , wherein the second adhesive layer is an ultraviolet-curable adhesive. 
     
     
       7. The three-dimensional image display apparatus according to  claim 6 , wherein the first adhesive layer is a non-ultraviolet-curable adhesive. 
     
     
       8. The three-dimensional image display apparatus according to  claim 1 , wherein the second adhesive layer is a non-ultraviolet-curable adhesive. 
     
     
       9. The three-dimensional image display apparatus according to  claim 4 , wherein the second adhesive layer is an ultraviolet-curable adhesive. 
     
     
       10. The three-dimensional image display apparatus according to  claim 9 , wherein the first adhesive layer is a non-ultraviolet-curable adhesive.